Portass
Pronunciation : Por"tass
Part of Speech : n.
Etymology : [OF. porte-hors a kind of prayer book, so called from being portable; cf. LL. portiforium.]
Definition : Defn: A breviary; a prayer book. [Written variously portace, portasse, portesse, portise, porthose, portos, portus, portuse, etc.] [Obs.] Spenser. Camden. By God and by this porthors I you swear. Chaucer.
Source : Webster's Unabridged Dictionary, 1913